SO-307 Final_Part 2 - PS 307, Final Exam Part 2 Question 1...

PS 307, Final Exam Part 2
Question 1 - 40 points
A researcher hypothesizes that people who listen to classical
music have higher concentration skills than those in the general
population. On a standard concentration test, the overall mean is
15.5. The researcher gave this same test to a random sample of 12
individuals who regularly listen to classical music. Their scores
on the test were as follows:
16, 14, 20, 12, 25, 22, 23, 19, 17, 17, 21, 20
1. Is this a one- or two-tailed test?
2. Conduct all 6 steps of the appropriate statistic. Be
sure to label all six steps.
3. Calculate and interpret the effect size for this test.
< µ
2
) 2